Tooski, According to that information, the camshaft info you supplied from the camshaft you bought in the 80s is a true RA-IV type grind not a 744 grind. The 231/243 is very close to stock Pontiac RA-IV duration specs at .050" lift checking points.
Tom V.
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"Engineers do stuff for reasons" Tom Vaught
Despite small distractions, there are those who will go Forward, Learning, Sharing Knowledge, Doing what they can to help others move forward.
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